Live midterm results: House races

Analysts expected control of the House to flip to Democrats after this year’s midterm elections, when all 435 seats were up for grabs. About two dozen Republican-held districts that backed Democrat Hillary Clinton in 2016 were among the most vulnerable for the GOP.

Some factors were working in the Democrats’ favor, namely President Trump’s unpopularity and a favorable redrawing of Pennsylvania’s congressional lines. Retirements also provided opportunities for party flips.